Question

A computer is programmed to add $3$ to the number $N$, multiply the result by $3$, subtract $3$, and divide this result by $3$. The computer answer will be

• A. $N+1$
• B. $N+2$
• C. $N$
• D. $N-2$
• E. $N$ $+\frac{1}{3}$

Answer 1

The correct option is B $N+2$

A number $3$ is added to $N$, we get $N+3$
Now it is multiplied by $3$, we get $3(N+3)=3N+9$
Now the result is subtracted with $3$, we get $3N+9-3=3N+6$
Now the result is divided by $3$, we get $\frac{(3N+6)}{3}=N+2$